/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--purple-800);
  z-index: 100;
  border-bottom: 0.5px solid rgba(255,255,255,0.07);
  transition: background var(--transition);
}
.nav.scrolled {
  background: rgba(26, 15, 46, 0.97);
  backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.nav-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.nav-brand-img {
  height: 40px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0 1rem;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav-link:hover { color: rgba(255,255,255,0.85); }
.nav-link.active {
  color: var(--white);
  border-bottom-color: var(--purple-300);
}

.nav-link--dc {
  color: var(--dc-orange) !important;
  border: 0.5px solid rgba(230,126,34,0.35);
  border-bottom: 0.5px solid rgba(230,126,34,0.35);
  border-radius: var(--radius-sm);
  margin-left: 0.5rem;
  padding: 0 0.9rem;
  height: 30px;
  font-size: 0.65rem;
}
.nav-link--dc:hover { background: rgba(230,126,34,0.1); }

.nav-cta { flex-shrink: 0; }

/* ── Burger mobile ── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.7);
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform-origin: center;
}

/* Animation X quand menu ouvert */
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-burger { display: flex; }
  .nav-cta { display: none; }
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--purple-800);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-lg) var(--space-xl);
    gap: 0;
    border-bottom: 0.5px solid rgba(255,255,255,0.07);
  }
  .nav-links.open { display: flex; }
  .nav-link {
    height: 48px;
    width: 100%;
    border-bottom: 0.5px solid rgba(255,255,255,0.06);
    border-right: none;
  }
  .nav-link.active { border-bottom-color: rgba(255,255,255,0.06); }
  .nav-link--dc {
    border: none;
    border-bottom: 0.5px solid rgba(255,255,255,0.06) !important;
    border-radius: 0;
    margin-left: 0;
    height: 48px;
    width: 100%;
  }
}